Carriage-axle



(No Model.)

0. H. PALMER. CARRIAGE AXLE.

No. 519,732. Patented May 15, 1894.

UNITED STATES PATENT OFFICE.

CHARLES H. PALMER, OF AMESBURY, MASSACHUSETTS.

CARRIAGE-AXLE.

SPECIFICATION forming part of Letters Patent No. 519,732, dated May 15,1894.

Application filed A t 30,1893, S rial No. 484.365- (No model.)

To whom it may concern.-

Be it known that 1, CHARLES H. PALMER, of Amesbury, in the county ofEssex and State of Massachusetts, have invented a new and usefulImprovement in Carriage-Axles, which will, in connection with theaccompanying drawings, be hereinafter fully described, and specificallydefined in the appended claim.

In said drawings Figure 1 is a side elevation of an axle end complete,constructed according to my method. Fig. 2 shows the axle collar inlongitudinal section, and as in place upon the axle, the outer end ofthe latter being broken away. Fig. 3 is an elevation of the collar shownin Figs. 1 and 2, and taken as viewed from the left in said figures.Fig. 4 is like Fig. 2, except that there is no concentric groove in thecollar for the reception of the end of the box, as in Fig. 2. Fig. 5 isan elevation of the collar shown in Fig.

i 4, taken from the left, as in Fig. 3. Fig. 6 is a sectional elevationlike Fig. 2, except that the section through the collar is taken on thediagonal of the axle where the groove between the internal round andsquare portions of the collar does not show.

The object of my invention is to produce an axle at low cost, induplicated form, and in readiness to be applied to the vehicle. And theinvention consists in an axle made of proper length, direct from rolledbars of metal, having only the ends forged, and then turned; and thenprovided with collars that have been lathe finished, and which are, bysuitable pressure, forced to place upon the axle.

Referring again to said drawings, A represents the axle arm, and B theaxle bed; the latter being square in cross section and the arm beinground.

C is the collar, which is formed with a square portion a, that bearsupon part B of the axle bed; and with a portion 1), that is round bothinside and out, and which bears upon part A of the axle arm. In saidcollar is formed a concentric chamber e, that has a diameter equal tothe diagonal of part B as shown by line 0. When the collar is formed oflarge size, as in Figs. 1, 2 and 3, an annular recess or groove d isformed in its front face, into which a lip, formed upon the box, entersto constitute a grease and gravel guard. But when the collar is of smallsize, as in Figs. 4 and 5, the rear end of the box extends back over thecollar and incloses the same. The axle proper will be formed from rolledbars of metal of the size of part B, and will have the ends A rounded tosize; while the collars C will be formed preferably of cast metal, andthe rounded part b will be turned, inside and out, while the internalsquare part of a that receives part B may be cut to size by a broach orpunch forced into it for the purpose of giving it finished size.

Reference to Fig. 6, in connection with Figs. 2 and 4, will render itplain that groove e is of a diameter equal to the diagonal of part B ofthe axle and hence constitutes the dividing line between the chamber inpart a and the interior of part b, so that either part a or b can befinished internally without interfering with the other.

It --will be obvious that by my invention axles can be made rapidly andcheaply, with every appearance of having a solid collar, and without thecost of reducing parts A and B from a bar the size of collar 0; or theexpense of forming said collar by upsetting a bar the size of B.

I do not claim in the abstract the driving or forcing of a collar uponan axle, as heretofore it has been common to force a disk-like collarupon part A, against the shoulder formed upon part B, by rounding partA.

What I do claim is In a carriage axle formed with round arm A and squarebed B, a collar 0 formed with portion a that fits upon part B of theaxle, and part b fitting upon portion Aof the axle, and having aninterior chamber 6 arranged between said portions (1 and b,substantially as specified.

CHARLES H. PALMER. WVitnesses:

GEORGE I-I. BRIGGS, DELL W. DOLBIEE.

